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Finding the Fourth Proportional to 469.60, 700.99 and 435.78

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Solution

The fourth proportional to 469.60, 700.99 and 435.78 is: 650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.60 : 700.99 = 435.78 : x
  2. Step 2: Convert to fraction form
    469.60/700.99 = 435.78/x
  3. Step 3: Cross multiply
    469.60x = 700.99 × 435.78
  4. Step 4: Simplify right side
    469.60x = 305,476.33
  5. Step 5: Solve for x
    x = 305,476.33/469.60
  6. Step 6: Final answer
    x = 650.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.